Raspberry Pi OS NOOBS – New Out Of the Box Software
We recommend that beginners start with Raspberry Pi Imager, an easy way to install Raspberry Pi OS and other operating systems to an SD card ready to use with your Raspberry Pi. NOOBS – New Out Of the Box Software – is an alternative straightforward way to install an operating system.
NOOBS setup guide: https://www.raspberrypi.org/help/videos
NOOBS is an easy operating system installer which contains Raspberry Pi OS and LibreELEC. It also provides a selection of alternative operating systems which are then downloaded from the internet and installed.
NOOBS Lite contains the same operating system installer without Raspberry Pi OS pre-loaded. It provides the same operating system selection menu allowing Raspberry Pi OS and other images to be downloaded and installed.